函数逻辑报告 |
Source Code:kernel\irq\autoprobe.c |
Create Date:2022-07-27 11:13:27 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
首页 | 函数Tree |
注解内核,赢得工具 | 下载SCCT | English |
函数名称:probe_irq_on - begin an interrupt autodetect* Commence probing for an interrupt. The interrupts are scanned* and a mask of potential interrupt lines is returned.
函数原型:unsigned long probe_irq_on(void)
返回类型:unsigned long
参数:无
33 | mask等于0 |
40 | mutex_lock( & Autodetection depends on the fact that any interrupt that* comes in on to an unassigned handler will get stuck with* "IRQS_WAITING" cleared and the interrupt disabled.) |
47 | 如果非中断服务例程链表且irq_settings_can_probe(desc)则 |
52 | 如果设置中断类型则设置中断类型( & irq_data, IRQ_TYPE_PROBE) |
57 | raw_spin_unlock_irq( & 自旋锁) |
61 | msleep(20) |
70 | 如果非中断服务例程链表且irq_settings_can_probe(desc)则 |
71 | istate或等于IRQS_AUTODETECT按位或IRQS_WAITING |
75 | raw_spin_unlock_irq( & 自旋锁) |
81 | msleep(100) |
86 | for_each_irq_desc(i, desc) |
89 | 如果istate按位与IRQS_AUTODETECT则 |
98 | raw_spin_unlock_irq( & 自旋锁) |
101 | 返回:mask |
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